of Commerce, the former Pratt Department of Commerce, originally having shared facilities with Pratt, evolved into Brooklyn Law School.

In 1891, Charles Pratt died, and his eldest son, Charles Millard Pratt, became president of the school. In 1923, Pratt's other son, Frederic B. Pratt, was elected president of Pratt Institute, taking over from his brother. Because Charles Pratt Snr. died so soon